As you can see the owner wanted to try these corn cob lights in every other can. The difference is huge. The old 4000K Par lights are no match for a new 20W LED light that is 5000K. 80W savings per hour per light and these will last 50,000 hours. Corn cob lights work well in high bays, wall packs, decorative lamps, bollards, acorn lights and more.